She entered the chapel calmly, carried by her mother Crown Princess Mette-Marit before around 300 invited guests. But as soon as she was handed over to her father, Crown Prince Haakon, when Mette-Marit stood up to speak, the wailing began.

It continued through most of Oslo Bishop Gunnar Stålsett's sermon, who nonetheless declared it was a day of joy "that awakens warm feelings."

The chapel, recently refurbished to the tune of NOK 4 million, was decorated with the baby princess' own small pink rose, along with pussy willows and other spring flowers. Guests arrived through a floral arch set up outside the palace's main entrance that resembled her mother's wedding bouquet.

Princess Ingrid Alexandra wore the same christening gown that her father's grandfather, King Olav V, wore at his own christening on August 11, 1903. The baby princess, who as Crown Prince Haakon's first-born child stands to take over as reigning queen one day, was named in part after the late king.

He was born in England as a Danish prince, Alexander Edward Christian Frederik, the son of Denmark's Prince Carl and England's Princess Maud. All three of them later formed Norway's royal family when the newly sovereign country voted to establish a monarchy after centuries of Danish and Swedish rule.

Princess Ingrid Alexandra was the first to use King Olav's christening gown, which is made of nearly transparent cotton with lace and narrow silk ribbons. Its cap, however, was new and designed after the style of the time.

The baby princess was carried to the baptismal font by her grandfather King Harald, and she cried all through it. Also present as godmothers were her aunt Princess Martha Louise, her maternal grandmother Marit Tjessem and Crown Princess Victoria of Sweden.

Her half-brother Marius, the crown princess' son from an earlier relationship, was also on hand, carrying a candle that the bishop eventually lit and called "Princess Ingrid Alexandra's light."

More than 200 of the christening guests, who included Norway's government ministers and a host of other dignitaries as well as family and friends, were invited to a luncheon at the palace immediately following the ceremony.